Improvement in latches for xates  and other purposes



6. R0 BERTS.

Latchas for Gafes and otherPur poses,

Patented Feb. 25,1873.

Q my AM. Moro-UTHDGRAPHIC co. N)((0ssanfls.'9 mums) CLARK nonnn'rs, orWINCHESTER, ILLINOIS.

EMPRGVEMENT IN LATCHES FOR GATE$ AND OTHER PURPOSES.

Specification forming part of Letters Patent No. 136,183, dated February25, 1873.

To all whom it may concern: Be it known that I, CLARK ROBERTS, ofWinchester, in the county of Scott and State of Illinois, have inventeda new and useful Improvement in Gate-Latches; and I do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the annexed drawing making part of thisspecification, in which Figure 1 is a front elevation of a gate providedwith my improved latch or fastening.

Fi 2 and 3 are detail views, on an enlarged scale, of my improved latch.

The same letters of reference are employed in all the figures in thedesignation of identical parts.

This invention'consists of certain improvements on the gate-latchpatented by me February 5, 1867--namely, in fol-min g an aperture in thelaterally-projectingportion of the latch, through which one arm of thethumb-piece or lever may pass to the arm of the latch, and oscillate thelatter in unlocking the gate.

To enable those skilled in the art to make and use my improvements, Iwill now proceedto describe, specifically, their construction andoperation.

The gravitating-latch is an angular piece of metal, which is suspendedfrom a suitable pivot upon the post or ja-Inb of the gate or door by itsvertical member A. Its member B projects at an angle of one hundred andthirtyfive degrees, or thereabout, and has the form of an isoscelestriangle, the base of c limited in its oscillation by asegmental bar orguide, 0, merging with its ends in the side bars (I and d of atriangular frame, D. From the apex of the triangular member B of thelatch extends an arm, B, obliquely to and hooks the formation of thelatch, and it has near its upper termination a tubular projecting'studor nipple, d which serves as the pivot upon which the latch oscillates.This nipple extends so far into the eye of the latch that the head ofthe screw E, while confining the latch against withdrawal from itspivot, will not bear against the latch, but against the end of thenipple, thus allowing the latch to vibrate freely. The thumb-piece ordisengaging-lever F maybe attached to the gate or door in the mannerindicated in Fig. 1, but I prefer to attach it also to the post or jamb;and in order that. thus disposed, it may properly operate upon thelatch, I form-an aperture, b, in the member B of the latter, throughwhich one arm of the thumb-piece passes, to rest against one side or theother, according as the latch is employed with aright-handed orlefthanded gate or door, of the arm B. .Ihe thumb-piece is pivoted inmanner like the latch, and it also is so constructedthat it may,together with the latch, be used in con; nection with both right handedand lefthanded gates and doors.

What I claim as my invention, and desire to secure by Letters Patent,is-

The combination of the gravitating-latch and the thumbpiece, the formerbeing constructed with an aperture, b, and arm B underneath it, and onearm of the latter passing through said aperture to operate upon arm B,substantially as specified.

In testimony that I *laim the improvement herein described I havehereunto subscribed my name this 25th day of November, 1872.

- OLARKROBEBTS.

Witnesses:

Gnonen K. PALMER, LEE HARLAN.

